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HDO of Methyl Palmitate over Silica-Supported Ni Phosphides: Insight into Ni/P Effect

Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090 Novosibirsk, Russia
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Catalysts 2017, 7(10), 298; https://doi.org/10.3390/catal7100298
Received: 30 July 2017 / Revised: 19 September 2017 / Accepted: 30 September 2017 / Published: 4 October 2017
Two sets of silica-supported nickel phosphide catalysts with a nickel content of about 2.5 and 10 wt % and Ni/P molar ratio 2/1, 1/1 and 1/2 in each set, were prepared by way of a temperature-programmed reduction method using (Ni(CH3COO)2) and ((NH4)2HPO4) as a precursor. The NixPy/SiO2 catalysts were characterized using chemical analysis N2 physisorption, XRD, TEM, 31P MAS NMR. Methyl palmitate hydrodeoxygenation (HDO) was performed in a trickle-bed reactor at 3 MPa and 290 °C with LHSV ranging from 0.3 to 16 h−1. The Ni/P ratio was found to affect the nickel phosphide phase composition, POx groups content and catalytic properties in methyl palmitate HDO with the TOF increased along with a decline of Ni/P ratio and a growth of POx groups’ content. Taking into account the possible routes of methyl palmitate conversion (metal-catalyzed hydrogenolysis or acid-catalyzed hydrolysis), we proposed that the enhancement of acid POx groups’ content with the Ni/P ratio decrease provides an enhancement of the rate of methyl palmitate conversion through the acceleration of acid-catalyzed hydrolysis. View Full-Text
Keywords: nickel phosphide; Ni/P ratio; nickel content; POx groups content; 31P MAS NMR; acidity; hydrodeoxygenation; methyl palmitate nickel phosphide; Ni/P ratio; nickel content; POx groups content; 31P MAS NMR; acidity; hydrodeoxygenation; methyl palmitate
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MDPI and ACS Style

Deliy, I.V.; Shamanaev, I.V.; Gerasimov, E.Y..; Pakharukova, V.P.; Yakovlev, I.V.; Lapina, O.B.; Aleksandrov, P.V.; Bukhtiyarova, G.A. HDO of Methyl Palmitate over Silica-Supported Ni Phosphides: Insight into Ni/P Effect. Catalysts 2017, 7, 298. https://doi.org/10.3390/catal7100298

AMA Style

Deliy IV, Shamanaev IV, Gerasimov EY, Pakharukova VP, Yakovlev IV, Lapina OB, Aleksandrov PV, Bukhtiyarova GA. HDO of Methyl Palmitate over Silica-Supported Ni Phosphides: Insight into Ni/P Effect. Catalysts. 2017; 7(10):298. https://doi.org/10.3390/catal7100298

Chicago/Turabian Style

Deliy, Irina V.; Shamanaev, Ivan V.; Gerasimov, Evgeny Y..; Pakharukova, Vera P.; Yakovlev, Ilya V.; Lapina, Olga B.; Aleksandrov, Pavel V.; Bukhtiyarova, Galina A. 2017. "HDO of Methyl Palmitate over Silica-Supported Ni Phosphides: Insight into Ni/P Effect" Catalysts 7, no. 10: 298. https://doi.org/10.3390/catal7100298

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